Limpkin's blog - Tag - avr - CommentsAn electronics geek blog, dedicated to sharing and open source2018-10-26T09:16:16+01:00Mathieuurn:md5:51de6a3d917257edeff5a252fe925b02DotclearMy new business card - limpkinurn:md5:92235628dc8d5fc46ca0aff93695ffa42017-02-20T12:15:48+01:002017-02-20T12:15:58+01:00limpkin<p>@<a href="http://www.limpkin.fr/index.php?post/2012/09/15/My-new-business-card#c95062" rel="nofollow">Erik</a>&nbsp;: I'm affraid I'm not!</p>My new business card - Erikurn:md5:f403f1172e82adf8c5586b6cd598a89e2017-02-10T15:45:07+01:002017-02-10T15:45:07+01:00Erik<p>Are you making anymore of these cards?</p>The Engine Control Unit monitor project - limpkinurn:md5:539d2cc97b2e4c9f8289300ad2885ef72016-05-12T21:09:29+02:002016-05-12T20:10:30+02:00limpkin<p>@<a href="http://www.limpkin.fr/index.php?post/2011/01/11/The-Engine-Control-Unit-monitor-project#c14162" rel="nofollow">Gaspar</a>&nbsp;: I've actually stopped working on it... but if the hardware is roughly the same it should work as is <img src="/themes/default/smilies/smile.png" alt=":)" class="smiley" /></p>The Engine Control Unit monitor project - Gasparurn:md5:87a2f576c3a999ce1ba15252d83a22bc2016-05-07T18:55:29+02:002016-05-07T17:55:29+02:00Gaspar<p>Hi.</p>
<p>I was looking for something like this and found your website.</p>
<p>I'm preparing a car (My car), with another engine but using the same wires inside.</p>
<p>But I wanted something like your project, to apply on it, since ECU is very limited to give values without a PC nearby.</p>
<p>I will put new sensors, different from the ones used by ECU and wanted something to make the reading and to show in LCD like yours.</p>
<p>Do you still work on this?</p>
<p>Thanks.</p>An Open CVMeter - limpkinurn:md5:8ae5b4bd0c09a7dc95df66b261e397cb2015-12-17T19:22:12+01:002015-12-17T19:22:12+01:00limpkin<p>It's a slave connector indeed. The device is detected as HID.</p>An Open CVMeter - Meurn:md5:9cfb307f4724c42ba304b651e651b6702015-12-17T16:22:31+01:002015-12-17T16:22:31+01:00Me<p>Do you need a fancy Rigol scope to use this? Is that a USB host or slave connector? I would assume that this device is a slave but from the picture it looks like a host connector.</p>
<p>You don't really talk about the software side of it. My assumption when reading that you needed USB because you weren't putting a display on it was that the USB would be to connect it to a computer to act as the display.</p>
<p>Maybe you are connecting a USB storage device? Then plugging that into the scope to plot the data on it? Do those scopes do that? If so then I suppose it shouldn't be too hard to plug the stick into a computer for plotting if you don't have the scope.</p>
<p>I ask because I might be interested in the kickstarter but not if it requires an expensive scope that is outside my budget to use it.</p>An Open CVMeter - limpkinurn:md5:d76a96c674d692602b39a0ece3def5bc2015-12-15T07:46:21+01:002015-12-15T07:46:21+01:00limpkin<p>@<a href="http://www.limpkin.fr/index.php?post/2015/11/24/An-Open-CVMeter#c9385" rel="nofollow">Kris</a> : I just pushed it to the repository.</p>An Open CVMeter - Krisurn:md5:e711e2a20a00b43ff0aa00601a7e62772015-12-15T02:47:37+01:002015-12-15T02:47:37+01:00Kris<p>Is the BOM published anywhere? I didn't see it in the github project.</p>[ping] An Open CVMeter - Anonymous blogurn:md5:ee44f18ecc6bfe54320bcf7dad0908952015-12-12T04:05:25+01:002015-12-12T04:05:25+01:00Anonymous blog<p><a href="http://www.knownaija.com/measuring-capacitance-against-voltage/">Measuring Capacitance Against Voltage | KnowNaija</a></p> <!-- TB -->
<p>(&#8230;)</p>[ping] An Open CVMeter - Anonymous blogurn:md5:1e81d72b555c760b6a3944af1e9f4e462015-12-12T04:02:06+01:002015-12-12T04:02:06+01:00Anonymous blog<p><a href="http://hackaday.com/2015/12/11/measuring-capacitance-against-voltage/">Measuring Capacitance Against Voltage | Hackaday</a></p> <!-- TB -->
<p>(&#8230;)</p>[ping] An Open CVMeter - Anonymous blogurn:md5:20e73a772bfd421451dcee04187dee842015-11-24T19:02:00+01:002015-11-24T19:02:00+01:00Anonymous blog<p><a href="http://blog.atmel.com/2015/11/18/this-open-source-box-will-measures-capacitance-and-leakage-current/">This open source box will measures capacitance and leakage</a></p> <!-- TB -->
<p>(&#8230;)</p>An Open CVMeter - John Blutarskiurn:md5:b0a86d762400b400cadcc8f4268f93802015-11-24T17:20:39+01:002015-11-24T17:20:39+01:00John Blutarski<p>Thru-hole ceramic capacitors do not exhibit much dC/dV at all -- this effect is only prominent in small surface mount capacitors that are forced to employ goofy dielectrics with very high epsilon. So I don't agree that "most ceramic capacitors lose up to 80% of their capacitance". Only low voltage, high value (&gt;1000pF), surface mount caps using screwball dielectric materials.</p>A Timeless Fountain - limpkinurn:md5:0043c842238d2094c326b408e12e886c2015-06-26T21:34:18+02:002015-06-26T20:37:09+02:00limpkin<p>@<a href="https://www.limpkin.fr/index.php?post/2015/06/30/A-Timeless-Fountain#c2989" rel="nofollow">FountainFan</a>&nbsp;:Thanks for your kind words! The firmware is an absolute mess as it is a non commented version of&nbsp;<a href="https://github.com/limpkin/capmeter" hreflang="en" rel="nofollow">this</a>. Send me an email and I'll send you the sources :). Please also let me know how your experiments go!</p>A Timeless Fountain - FountainFanurn:md5:690934ae7baf132aa893d932f3e14b632015-06-26T10:55:29+02:002015-06-26T20:37:10+02:00FountainFan<p>Hi,</p>
<p>I have been attempting a very similar project, but from a slightly different angle. I tried using a solenoid pump to assure a regular drop rate but the variance of drop shape has been annoying me. I shall be trying your nozzle design next. Thanks for sharing ! Can I also ask if you have any intention of sharing the source code for this project ?</p>
<p>Regards.<br />
FF.</p>A Personal Perspective on Managing an Open HW Project - Part 2 - limpkinurn:md5:d9939b94cd43797c7a9394a634e39ffb2015-06-10T23:39:31+02:002015-06-10T22:40:53+02:00limpkin<p>@<a href="https://www.limpkin.fr/index.php?post/2015/03/04/A-Personal-Perspective-on-Managing-an-Open-Hardware-Project-Part-2#c2967" rel="nofollow">D-Three</a>&nbsp;: Hello there! The mechanical design was actually made by a previous colleague of mine.</p>A Personal Perspective on Managing an Open HW Project - Part 2 - D-Threeurn:md5:4a7363727fc96d981184799a0d89eb492015-06-04T09:39:55+02:002015-06-10T22:40:53+02:00D-Three<p>Nice project! Haven't read much about it to be honest but it indeed has much potential. By the way, did you design the housing yourself?</p>RGB led matrices with animated gifs - barretturn:md5:d6426f95b35bbe958a0916b281909ddb2015-01-10T16:06:07+01:002015-01-11T12:29:14+01:00barrett<p>hahaha..I have a lot of 4mm pitch RGB 16×16 matrix ,But I live in Shenzhen, China</p>The Engine Control Unit monitor project - limpkinurn:md5:1e4a01f07ad85fd0a293855209f06b162015-01-05T00:22:38+01:002015-01-05T00:23:04+01:00limpkin<p>@<a href="https://www.limpkin.fr/index.php?post/2011/01/11/The-Engine-Control-Unit-monitor-project#c2844" rel="nofollow">Denis Köllner</a>&nbsp;: Sorry, I'm not planning to release it!</p>The Engine Control Unit monitor project - Denis Köllnerurn:md5:4cfc7768949add8bda91c73476d5ef012015-01-01T13:24:33+01:002015-01-05T00:21:31+01:00Denis Köllner<p>Hi,</p>
<p>that is a very nice Project. I'm searching a long time for such an Displayunit. But I want to use three MAX31855 for the ExhaustGasTemperature sensoring (pre Turbo 1,2 and one for the Catalytic). Further to oil temperature, pressure and MAP should be measured.<br />
All other data are logged with my GREDDY Emanage.<br />
Are there a possibility to get the source code?</p>
<p>Thanks for the nice Project<br />
Best regards</p>My Business Card v2 - limpkinurn:md5:80272cbb6147fb781e189acaa93d21cb2014-10-03T23:41:09+02:002014-10-03T22:49:45+02:00limpkin<p>@<a href="https://www.limpkin.fr/index.php?post/2014/06/16/My-business-card-v2#c2498" rel="nofollow">njneer</a>&nbsp;: Thanks! Please do... it's open source <img src="/themes/default/smilies/wink.png" alt=";-)" class="smiley" /> . Oh right, I forgot to explicitly mention that the ESD protection chip was changed indeed. Your ferrite is indeed alright. The crystal was changed to a 3.2x2.5mm (from a 5x3.2mm IIRC).&nbsp;</p>
<p>The milling was 1mm deep so the flash &amp; leds could be hidden. I can send you solidworks files by email if you want!</p>